.music_btn {
    display: inline-block;
    -webkit-background-size: 100%;
    background-size: 100%;
    position: absolute;
    z-index: 10;
}
.music_btn:hover{
    cursor: pointer;
}
.music_stop {
    animation: none;
}
.music_start {
    -webkit-transition-property: -webkit-transform;
    -webkit-transition-duration: 1s;
    -moz-transition-property: -moz-transform;
    -moz-transition-duration: 1s;
    -webkit-animation: rotate 3s linear infinite;
    -moz-animation: rotate 3s linear infinite;
    -o-animation: rotate 3s linear infinite;
    animation: rotate 3s linear infinite;
}


@-webkit-keyframes rotate{from{-webkit-transform: rotate(0deg)}
    to{-webkit-transform: rotate(360deg)}
}
@-moz-keyframes rotate{from{-moz-transform: rotate(0deg)}
    to{-moz-transform: rotate(360deg)}
}
@-o-keyframes rotate{from{-o-transform: rotate(0deg)}
    to{-o-transform: rotate(360deg)}
}
@keyframes rotate{from{transform: rotate(0deg)}
    to{transform: rotate(360deg)}
}

